Grinding tool



FIG. 1 is a top plan view showing my new design for a grinding tool, the bottom plan view being a mirror image thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view taken from the left side of FIG. 1, the right side elevational view being a mirror image thereof;

FIG. 5 is a top plan view of a modified form for the grinding tool shown in FIG. 1, the bottom plan view being a mirror image thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a side elevational view taken from the left side of FIG. 5, the right side elevational view being a mirror image thereof. 

The ornamental design for a grinding tool, as shown and described. 